One of the main foci of the service is privacy. But to add some decentralization, our files are regularly backed up, encrypted and made available to "IPFS"://ipfs.io. Everyone can help to back up the data by following this simple guide. In case of catastrophic failure, person possessing the encryption keys can recover data from distributed back up and bring the service online again.

Backup consists of several ~4GB chunks. During normal operation, they won't be modified, only added.